docs: def Wood_1966(Re, eD):
      r'''Calculates Darcy friction factor using the method in Wood (1966) [2]_
      as shown in [1]_.
  
      .. math::
          f_d = 0.094(\frac{\epsilon}{D})^{0.225} + 0.53(\frac{\epsilon}{D})
          + 88(\frac{\epsilon}{D})^{0.4}Re^{-A_1}
  
      .. math::
          A_1 = 1.62(\frac{\epsilon}{D})^{0.134}
  
      Parameters
      ----------
      Re : float
          Reynolds number, [-]
      eD : float
          Relative roughness, [-]
  
      Returns
      -------
      fd : float
          Darcy friction factor [-]
  
      Notes
      -----
      Range is 4E3 <= Re <= 5E7;  1E-5 <= eD <= 4E-2.
  
      Examples
      --------
      >>> Wood_1966(1E5, 1E-4)
      0.021587570560090762
  
      References
      ----------
      .. [1] Winning, H. and T. Coole. "Explicit Friction Factor Accuracy and
         Computational Efficiency for Turbulent Flow in Pipes." Flow, Turbulence
         and Combustion 90, no. 1 (January 1, 2013): 1-27.
         doi:10.1007/s10494-012-9419-7
      .. [2] 	Wood, D.J.: An Explicit Friction Factor Relationship, vol. 60.
         Civil Engineering American Society of Civil Engineers (1966)
      '''
      A1 = 1.62*eD**0.134
      return 0.094*eD**0.225 + 0.53*eD +88*eD**0.4*Re**-A1